Toyota Tundra (2015 year). Manual — part 1184
A
GO TO STEP 5
B
GO TO STEP 6
4.
CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
(a) Disconnect the canister pump module connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
R12-8 (SGND) - Body ground
Always
100 Ω or less
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
R12-6 (VCC) - Body ground
Ignition switch ON
4.5 to 5.5 V
R12-7 (VOUT) - Body ground
Ignition switch ON
4.5 to 5.5 V
Result
RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
Voltage and resistance within standard
ranges
Open in canister pressure sensor circuit
A
Voltage and resistance outside standard
ranges
Open in wire harness/connector (ECM - Canister pressure
sensor)
B
B
GO TO STEP 6
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
A
5.
REPLACE CANISTER PUMP MODULE
(a) Replace the canister pump module
.
NOTICE:
When replacing the canister pump module, check the canister pump module interior, canister interior and related
pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following:
1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose.
If liquids are present in the canister interior, replace the canister and canister pump module together.
Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace the canister and
canister pump module together.
Check for filter blockage in the canister filter. If the canister filter has blockages, replace the fuel tank inlet pipe
sub-assembly.
Text in Illustration
*1
Fuel Tank
*2
Fuel Tank Vent Hose
*3
Canister Assembly
*4
Canister Pump Module
- Canister Pressure Sensor
- Leak Detection Pump
- Vent Valve
*5
Fuel Tank Inlet Pipe Sub-assembly (Canister Filter)
*6
Canister Outlet Hose
*a
Inspection Area (check for disconnection and/or cracks)
-
-
NEXT
GO TO STEP 8
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
NEXT
6.
REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM)
HINT:
If the exhaust tailpipe has been removed, go to the next step before reinstalling it.
NEXT
GO TO STEP 8
7.
REPLACE ECM
(a) Replace the ECM
.
8.
CHECK WHETHER DTC OUTPUT RECURS (AFTER REPAIR)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs
.
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Turn the ignition switch to ON and turn the Techstream on.
(g) Start the engine and warm it up.
(h) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
(i) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
(j) Input the DTC: P0451, P0452 or P0453.
(k) Check the DTC judgment result.
TECHSTREAM DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
TECHSTREAM DISPLAY
DESCRIPTION
N/A
Unable to perform DTC judgment
END
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;...
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст